If you’re still wondering whether you should, ask yourself two questions: can I live with his faults? Can I live without his virtues? If the answers are anything but “yes” and “no,” this relationship will end eventually, and it’s up to you when you want that to happen. If you’re certain, then the answer is soon, unequivocally, and with clear reasons. Be as gentle as circumstances allow, but be firm. There will be tears, but that’s OK. You might want to make sure a close friend is available for the aftermath.